Safety-catch for elevators



(ModeL) 2 Sheets-Sheet 2.

W. GILES.

SAFETY OATGH FOR ELEVATORS. No. 301,586. Patented July 8, 1884.

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UNITED STATES XVILLIAM GILES, OF MOUNT OLIVE, ILLINOIS.

SAFETY CATGH FOR ELEVATORS.

EPECIIEICATION forming part of Letters Patent No. 301,586, dated July 8,1884.

' Application filed May 14,1884. (.Modcl.)

To all 1072 0121, it 7. 71035 607208772,

Be it known that I, W'ILLIAM Guns, of

Mount Olive, in thecounty of Macoupin and State of Illinois, haveinvented a new and Improved Safety-Catch for Elevators, of which thefollowing is a full, clear, and exact description.

The object of my invention is to provide a which beam the car issuspended by means of springs and chains, and of levers pivoted on thefloor of the car or cage, and carrying wedge-blocks, which levers areconnected by rods with the abovementioned beam, whereby the wedge-blocksare pressed against the guide-beams when the cable breaks, and thus lockthe car in place, all as will be fully set forth hereinafter.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a cross-sectional elevation of an elevator-car provided withmy improved safety-catch'. Fig. 2 is a side view of the same, partsbeing broken out. Fig. 3 is a plan view of the top beam of the same,parts being broken and others shown in section. Fig. t is a sectionalview of the end of the beam.

The elevator or mine shaft A is provided with two oppositeverticalguide-beams, B. Two standards, a, arranged at opposite sides of thecage-floor C, are united a short distance below the upper ends by alongitudinal beam, 15. To each standard a a crossbar or beam, cl, issecured. At the ends of the bars or beams cl upright rods D'are secured,which have their lower ends secured in the corners of the door G.The-standards a have forked clips 6 at the'top and bottom, which clipsembrace the guide-beams B. Stirrup-rods E are hung on the ends of thecross-beams (Z, and on them the free ends of sheet-iron tops f rest,which are hinged on rods g, connecting the upper lower end of thehoisting-cable H, and to the ends of the hanger G the ends of astirrupbar, I, on which a beam, J, rests, are pivoted. Between the endsof the beam J and the upwardly-projecting parts of the stirrupoutwardly-projecting Ushaped clips 7c are held,

which embrace the upright guide-beams B, V

which clips it each have an outwardly-projecting lug, Z, on the outersurface of each prong. U shaped clips K are held on the ends of the beamJ, and through the ends of the beam J and the clips K bolts L arepassed. which have an eye at each end. Chains M have their ends. securedto the eyes on the ends of the bolts L and to eyes in'the upper ends ofthe corner standards or rods D.

Upwardly-projecting rods N, secured on the longitudinal beam 12, passthrough vertical. apertures 0 in the beam J, and through ellipticsprings O, resting on the beam J. Nuts are screwed on the upper ends ofthe bars, or pins are passed through the upper ends of the said rods.

On each end'of the floor G a lever, P, is piv oted at each side of eachstandard a, to the outer ends of which levers l? the lower ends of rodsQare pivoted, which rods have their upper ends pivoted to the lugs Z onthe clips k.

To the inner ends of the levers P downwardly-projecting rods Itarepivoted, which pass through apertures m in wedge-shaped blocks S, thesaid apertures gradually decreasing in width from the top to the bottom.Pins are passed through the lower ends of the rods pended from the beamJ by means of rods N, 100

ear or cage. ascends or descends.

blocks S are held at a short distance from the sides of the guide-beamsB when the elevator As long as I the cable is intact, the springs remaincompressed. WVhen the cable breaks, the springs O expand and exert adownward pressure, thereby forcing the beam J downward, and alsopressing the outer ends of the levers P downward and the inner endsupward. Thereby the blocks S are pulled upward, and as they slide on thebeveled edges of the blocks T they are pressed against the sides of thebeams B with great force, and thus lock the car or cage in place. Theplates f form a roof to protect the occupants of the car or cage fromstones, &c., dropping down the shaft.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In an elevator-car, the combination, with the beam J, suspended fromthe hoisting-cable, of springs on the said beam, rods secured on thesaid springs and passing through the beam, and which rods are secured,to the top of the cage or car, chains for suspendingthe car or cage fromthe beam J, the levers P, pivoted on the car-floor, the rods Q,connecting the outer ends of the levers P with the beam J, wedgeblocksS, suspended from the inner ends of the levers P, and the beveled blocksT on the ends of the car or cage, substantially as herein shown anddescribed.

2. In an elevator-car, the combination, with the floor O, of thestandards a, the beams b and d, the upright rods D, the beam J, the rodsN, passing from the beam 1) up through the beam J, the springs O on thebeam J, to which springs the upper ends of the rods N are secured, thehanger G, suspended from the cable H, the chains M, connecting the beamJ with the upper ends of the rods D, the levers P on the floor O, therods Q, connecting the levers P with the beam J, the wedge-blocks S,suspended from the ends of levers P, and the bevel-blocksT on the endsof the car-floor, substantially as herein shown and described.

3. The combination, with the hoof O, of the standards a, the beams 12and d, the stirruprods E, the rods 9, and the top plates, f, pivoted onrods uniting the standards a and resting on the stirrups E,substantially as herein shown and described.

4.. The combination,with hanger G, secured on the cable H, of thestirrup I, the beam J on the same, the U shaped clips K, held betweenthe ends of the beams J and the stirrup I, and of an elevator-carsuspended from the beam J by means of intermediate springs and of leverscarrying'wedgeblocks, which levers are connected by connecting-rods withthe beam J, substantially as herein shown and described.

5. The combination, with the hanger G, of the stirrup I, pivoted to thesame, the beam J, resting on the stirrup, the U-shaped clip on the endsof the beam J, the bolts L, passed through the ends of the beam J, theU-shaped clips K, held between the ends of the beam J and stirrup I, andan elevator-car suspended from the beam J by means of springs and chainsM, secured to the ends of the bolts L,

levers pivoted on the car-floor, and carrying wedge-blocks and rods,connecting the said levers with the beam J substantially as herein shownand described.

WILLIAM GILES. WVitnesses:

GEORGE H. STORM, HARBERT H. DE BUHR.

